Riona had strong feelings for Hitomi, but kept them hidden, wary of their relationship as girls. One day, Hitomi's mother invited them both on a hot spring trip together. Throughout the journey, Riona found herself captivated by Hitomi's every move—especially when she flashed her panties or revealed her naked body. Unable to restrain herself any longer, Riona made her move. Surprised but yielding, Hitomi accepted it. That night, mindful of Hitomi's mother nearby, the two indulged in passionate lesbian lovemaking. Will Riona's true feelings finally reach Hitomi?